android客户端怎么与服务器交互

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#热议# 普通体检能查出癌症吗？

育知同创教育
2016-08-13 · 百度知道合伙人官方认证企业

育知同创教育

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1、java服务器建立至少一种服务webservices、servlet、socket
2、客户端通过socket或者httpurlconnection的方式进行连接访问
服务端：
@Override
	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		// TODO Auto-generated method stub
		resp.setContentType("text/html;charset=utf-8");
		req.setCharacterEncoding("utf-8");
		resp.setCharacterEncoding("utf-8");

PrintWriter out = resp.getWriter();
		//用HTML格式给浏览器返回数据
		out.println("<html>");
		out.println("<head>");
		out.println("<title>Tomcat Servlet测试</title>");
		out.println("</head>");
		out.println("<body>");
		out.println("Hello,First Servlet!");
		out.println("</body>");
		out.println("</html>");
		out.println("Hello,第一个Tomcat!!!");
		out.close();
	}
客户端：
private String doGet(String url){  
        String responseStr = "";  
        try {  
            String name = nameEdit.getText().toString().trim();  
            String code = codeEdit.getText().toString().trim();  
            String getUrl = URL + "?NAME=" + name+"&"+"CODE=" + code;         
              
            HttpGet httpRequest = new HttpGet(getUrl);  
            HttpParams params = new BasicHttpParams();  
            ConnManagerParams.setTimeout(params, 1000);  
            HttpConnectionParams.setConnectionTimeout(params, 3000);  
            HttpConnectionParams.setSoTimeout(params, 5000);  
            httpRequest.setParams(params);  
  
            HttpResponse httpResponse = new DefaultHttpClient().execute(httpRequest);  
        final int ret = httpResponse.getStatusLine().getStatusCode();  
        if(ret == HttpStatus.SC_OK){  
            responseStr = EntityUtils.toString(httpResponse.getEntity(), HTTP.UTF_8);  
        }else{  
            responseStr = "-1";  
        }  
        } catch (ClientProtocolException e) {  
            // TODO Auto-generated catch block  
            e.printStackTrace();  
        } catch (IOException e) {  
            // TODO Auto-generated catch block  
            e.printStackTrace();  
        }  
          
        return responseStr;  
    }


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